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Finding the Fourth Proportional to 800,339.64, 1,200,511.48 and 327,025.00

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Solution

The fourth proportional to 800,339.64, 1,200,511.48 and 327,025.00 is: 490,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,339.64 : 1,200,511.48 = 327,025.00 : x
  2. Step 2: Convert to fraction form
    800,339.64/1,200,511.48 = 327,025.00/x
  3. Step 3: Cross multiply
    800,339.64x = 1,200,511.48 × 327,025.00
  4. Step 4: Simplify right side
    800,339.64x = 392,597,261,290.37
  5. Step 5: Solve for x
    x = 392,597,261,290.37/800,339.64
  6. Step 6: Final answer
    x = 490,538.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.